xyzc.ini: [DISPLAY]GEOMETRY=!CXYZ

The '!' specifies rotations respecting
G5x,G92 offsets

xyzc_origin.ini: [DISPLAY]GEOMETRY=CXYZ
Show default behavior with
rotations about machine origin


demo file:
[DISPLAY]OPEN_FILE=xyzc.ngc 
demonstrates C rotations with and
without G5x and G92 offsets
